2.2.3 Reconsider the previous question. The monthly salaries of the 3 people working in a small rm are: $3500, $4000, and $4500. Suppose the rm makes a prot and everyone gets a $100 raise, how, if at all, would the standard deviation of the 3 salaries change? a) The standard deviation would stay the same. b) The standard deviation would increase. c) The standard deviation would decrease. d) Cannot be answered without doing calculations